My R9 290 gaming which is roughly a year and a half old went kaput and turned into an un-coolable flamethrower. So I sent it in for an RMA last month. And today I got this in an e-mail from support...
Why yes, MSI I would love to get a 390x Gaming as a replacement
TLDR: RMA'ed old 290, they ran out of them and are sending back a 390x. Took two weeks and was painless to RMA. No complaints here, 10/10 would buy MSI again.